Patents Represented by Attorney, Agent or Law Firm Andrew C. Siminerio
  • Patent number: 6862851
    Abstract: A mounting assembly comprises a mounting member comprising a base having a first surface; a central portion extending from the base and having a second surface spaced from the base; and a shoulder region located between the base and the central portion. The area of the first surface may be different from the area of the second surface. The shoulder region of the mounting member can include a wall extending from at least in close proximity to the second surface of the central portion to the base. In a nonlimiting embodiment of the assembly, the base is cylindrically shaped with a substantially flat first surface, the second surface of the central portion is substantially flat and substantially circular in plan view and further is concentric with the first surface, and the wall extends from the second surface to a location inboard of the periphery of the base.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: March 8, 2005
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Phillip H. Burnside, Julia G. Bernas, William R. Siskos, Robert N. Pinchok, Mark K. McLure
  • Patent number: 6833194
    Abstract: Tin is added to a zinc cathode target to enhance the sputter efficiency of the target. Films deposited using the cathode, e.g., greater than zero but less than 10 weight percent tin and greater than 90 but less than 100 weight percent zinc improve the chemical durability of a high transmittance, low emissivity coating stack over coating stacks having zinc oxides without tin oxide. High transmittance, low emissivity coating stacks are heated with the heated coating having reduced haze by selecting the thickness of metal primer layer between an infrared reflective film, e.g. a silver film and a dielectric film, e.g., a 52-48 zinc stannate, zinc oxide, tin oxide film or a zinc oxide film. Also disclosed are enhancing films that lower the resistivity of silver films deposited thereon and improve chemical durability of the coating stack.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: December 21, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Dennis J. O'Shaughnessy
  • Patent number: 6818065
    Abstract: Systems, devices and methods for applying solution to a filament include an applicator for applying at least a partial coating of a solution to a filament, comprising: an applicator surface operable to at least partially coat a filament with a solution; a first container operable to supply the solution to the applicator surface, a volume of the solution in the first container corresponding to a solution level in the first container; a second container operable to contain a supply of solution in fluid communication with the solution in the first container such that the solution in the second container has a solution level indicative of the solution level of the solution in the first container; and a detector for determining the solution level within the second container, the detector operable to control an adjustment of the volume of the solution in the first container such that the solution level in the first container is maintained within a predetermined range of levels.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: November 16, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Mitchell V. Bruce, Thomas V. Thimons, Dominic E. Verdini, Songhao Wang, Paul A. Westbrook
  • Patent number: 6818575
    Abstract: A glass fiber composition has 52 to 62 percent by weight SiO2, 0 to 2 percent by weight NaO2O, 16 to 25 percent by weight CaO, 8 to 16 percent by weight Al2O3, 0.05 to 0.80 percent by weight Fe2O3, 0 to 2 percent by weight K2, 1 to 5 percent by weight MgO, 0 to 5 percent by weight B2O3, to 0 to 2 percent by weight TiO2, and 0 to 1 percent by weight F, and further has a log 3 forming temperature of no greater than 1240° C. based on an NIST 714 reference standard, a &Dgr;T of at least 50° C., and a SiO2/RO ratio of no greater than 2.35.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: November 16, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Frederick T Wallenberger
  • Patent number: 6818281
    Abstract: A windshield assembly having a windshield outer periphery and including a first transparent member, a second transparent member and a transparent interlayer disposed between the first transparent member and the second transparent member. The assembly includes an insert having a first portion and a second portion, and the insert extends a portion of the windshield assembly outer periphery. A portion of the first portion of the insert extends between the first transparent member and the second transparent member. An insert for a windshield assembly is also disclosed.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: November 16, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Calvin B. Blevins, Shaun E. Jessup
  • Patent number: 6809046
    Abstract: The present invention provides non-heat cleaned glass fiber fabrics comprising resin compatible coatings that offer higher tensile strengths than corresponding fabrics that have been heat cleaned and silane finished. These fabrics can be used in a wide variety of applications, such as reinforcements for composites such as printed circuit boards. In one nonlimiting embodiment, the invention provides a non-heat cleaned fabric comprising a plurality of fiber strands in a warp direction and a fill direction, each fiber strand comprising a plurality of E-glass fiber, and having a resin compatible coating composition on at least a portion of a surface of at least one fiber strand, wherein the fabric has a tensile strength of at least 267 Newtons when measured in the warp direction or fill direction. Although not required, the fabric also has a tensile strength of at least 1.5 times that of a corresponding fabric that is heat cleaned by heating the corresponding fabric to a temperature of at least 380° C.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: October 26, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Vedagiri Velpari, Ernest L. Lawton, William B. Rice, Walter J. Robertson, Kami Lammon-Hilinski, Bruce E. Novich, Xiang Wu
  • Patent number: 6802205
    Abstract: A moisture detection system includes an electrical conductor disposed on a surface of a substrate. The electrical conductor has a resonant frequency that varies as a function of an amount of moisture present adjacent the electrical conductor. An oscillator outputs an oscillator signal at a predetermined amplitude and a predetermined frequency. A resonator circuit is coupled to the electrical conductor and is responsive to the oscillator signal and the resonant frequency of the electrical conductor for outputting a resonator signal having an amplitude related to the resonant frequency of the electrical conductor. A filter circuit rectifies and filters the resonator signal and provides it to an analog-to-digital converter which outputs a digital signal related to the rectified and filtered resonator signal. A controller is responsive to the digital signal for causing a system associated with the substrate to operate in accordance with the digital signal.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: October 12, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Pascal Barguirdjian, Michel Haigron, Allan Rex Hawk, Kwaku Koi Koram
  • Patent number: 6797388
    Abstract: A coating in accordance with the invention has a substantially crystalline first layer with a substantially crystalline second layer provided over the first layer. A breaker layer is provided between the first and second layers and is configured to prevent or at least reduce epitaxial growth of the second layer on the first layer. A color suppression layer may be provided below the first layer. The coating can be provided on a substrate to make a coated article. A method of coating a substrate includes depositing a substantially crystalline first layer over at least a portion of the substrate and depositing a breaker layer over the first layer. The breaker layer is configured to prevent or at least reduce epitaxial growth of a subsequently deposited layer on the first layer.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: September 28, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Janos Szanyi, John F. Sopko, George A. Neuman
  • Patent number: 6794882
    Abstract: A rupture detector for a windshield assembly having one or multiple transparent members. The rupture detector includes a conductive member attached to a portion of the transparent member. An electrical power source in communication with the conductive member applies an electrical potential to the conductive member, and an electrical measurement mechanism is in communication with the conductive member and measures the electrical potential of the conductive member. A windshield assembly is also disclosed.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: September 21, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Shaun E. Jessup
  • Patent number: 6791066
    Abstract: A transparency, e.g. a laminated windshield has a pair of spaced bus bars on an electric conductive member e.g. an electric conductive coating on a glass sheet. The perimeter of the coating is spaced from the peripheral edge of the sheet to provide a non-conductive strip. Ends the bus bars extend into the non-conductive strip to minimize/eliminate hot spots at the end portions of the bus bars. An additional feature to reduce hot spots includes bus bars having different lengths with portions of the coating between the bus bars not extending beyond the ends of the longer bus bar. In another, the windshield has a vision area, a bus bar between the top edge of the coating and the top edge of the vision area and a bus bar between the bottom edge of the coating and bottom edge of the vision area.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: September 14, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Allen R. Hawk
  • Patent number: 6783099
    Abstract: An electrochromic aircraft window assembly includes: a) an outboard pane assembly; and b) a fog preventing electrochromic pane assembly spaced from the outboard pane assembly and defining a chamber therebetween, the fog preventing electrochromic pane assembly having: i) a first substrate having a first surface including a first conductive coating and a second surface including a second conductive coating; ii) a second substrate spaced from the first substrate, the second substrate having a first surface including a third conductive coating, the second surface of the first substrate and the first surface of the second substrate facing each other in spaced-apart relation to define a chamber therebetween; iii) an electrochromic medium contained in the chamber and in contact with the second and the third conductive coatings, the electrochromic medium having a luminous transmittance that varies upon application of an electrical potential through the electrochromic medium; iv) facilities for applying electrical cur
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: August 31, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Thomas G. Rukavina, Chia-Cheng Lin
  • Patent number: 6730389
    Abstract: A method of making a frequency selective surface in an electromagnetic energy attenuating coating having an electrical resistance, including the steps of defining a first marking field and a first marking tolerance; defining a second marking field and a second marking tolerance; marking selected portions of the coating within the first marking field to define a first pattern; marking selected portions of the coating within the second marking field to define a second pattern such that the first and second patterns are spaced from one another by a distance at least equal to a combined tolerance of the marking devices; and marking a strip of the coating between the first pattern and the second pattern with at least one connector segment in a manner that substantially increases the resistance of the coating strip.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: May 4, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Charles S. Voeltzel
  • Patent number: 6722159
    Abstract: A method and article are disclosed wherein a substrate is provided with a photocatalytically-activated self-cleaning surface by forming a photocatalytically-activated self-cleaning coating on the substrate by spray pyrolysis chemical vapor deposition or magnetron sputter vacuum deposition. The coating has a thickness of at least about 500 Angstroms to limit sodium-ion poisoning to a portion of the coating facing the substrate. Alternatively, a sodium ion diffusion barrier layer is deposited over the substrate prior to the deposition of the photocatalytically-activated self-cleaning coating to prevent sodium ion poisoning of the photocatalytically-activated self-cleaning coating. The substrate includes glass substrates, including glass sheet and continuous float glass ribbon.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: April 20, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Charles B. Greenberg, Caroline S. Harris, Vincent Korthuis, Luke A. Kutilek, David E. Singleton, Janos Szanyi, James P. Thiel
  • Patent number: 6715244
    Abstract: A multi-sheet glazing unit includes a closed spacer frame, the spacer frame has one side having a pair of legs joined to a base to provide the spacer frame with a U-shaped cross-section. An inner sheet has an edge mounted in an edge receiving member mounted between the legs of the U-shaped side of the spacer frame. The remaining edges of the inner sheet are within the interior of the closed spacer frame and spaced from the spacer frame. The inner sheet is held within the spacer frame by sheet retaining members mounted to the spacer frame. A sheet e.g. glass sheet is secured by a moisture-impervious adhesive to outer surface of each of the legs of the spacer frame. One type of sheet retaining members has a horizontal member and a vertical member, and a locking member. The locking member is mounted on the horizontal member spaced from the vertical member to form a groove to hold the inner sheet within the closed interior of the spacer frame.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: April 6, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Bradley P. Boone, Stephen L. Crandell, Jack B. McCandless, David E. Singleton, Albert E. Thompson, Jr.
  • Patent number: 6686304
    Abstract: The present invention provides a glass fiber composition comprising: 52 to 62 percent by weight SiO2, 0 to 2 percent by weight Na2O, 16 to 25 percent by weight CaO, 8 to 16 percent by weight Al2O3, 0.05 to 0.80 percent by weight Fe2O3, 0 to 2 percent by weight K2O, 1.7 to 2.6 percent by weight MgO, 0 to 10 percent by weight B2O3, 0 to 2 percent by weight TiO2, 0 to 2 percent by weight BaO, 0 to 2 percent by weight ZrO2, and 0 to 2 percent by weight SrO, and further including at least one material selected from the group consisting of: 0.05 to 1.5 percent by weight Li2O, 0.05 to 1.5 percent by weight ZnO, 0.05 to 3 percent by weight MnO, and 0.05 to 3 percent by weight MnO2, wherein the glass composition has a forming temperature of no greater than 2280° F. based on an NIST 714 reference standard and a liquidus temperature of no greater than 2155° F.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: February 3, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Frederick T. Wallenberger
  • Patent number: 6680115
    Abstract: The present invention provides a mat having at least one primary area and at least one secondary area and adapted to reinforce a polymeric matrix material, the mat comprising (a) a first layer comprising a plurality of generally parallel, essentially continuous glass fiber strands oriented generally parallel to a longitudinal axis of the mat, at least a portion of outer surfaces of the first layer glass fiber strands having applied thereon at least a partial layer comprising at least a partially dried residue of first coating composition which is compatible with a polymeric matrix material, wherein at least a first portion of the first layer glass fiber strands are positioned within the at least one primary area at a primary strand density and at least a second portion of the first layer glass fiber strands are positioned within the at least one secondary area at a secondary strand density which is different from the primary strand density; and (b) a second layer comprising a plurality of randomly oriented gl
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: January 20, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Roger E. Mulder, Charles W. Peterson, Harri Dittmar
  • Patent number: 6677063
    Abstract: Hydrophilic and/or rutile and anatase titanium oxide are obtained by sputter depositing titanium metal oxide on a film of zirconium oxide in the cubic phase. Another technique is to deposit a titanium metal on a film of zinc oxide in the cubic phase and heating the coating in an oxidizing atmosphere to provide an anatase and/or rutile phase(s) of titanium oxide.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: January 13, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventor: James J. Finley
  • Patent number: 6675541
    Abstract: A fixture for and method of positioning an edge member on a sheet is provided. The fixture includes a base, an arrangement to locate a sheet to be supported on the fixture at a predetermined position relative to a plurality of datum points; and an arrangement to position an edge member to be secured along a peripheral edge of the sheet at a desired position relative to the datum points. In one particular embodiment of the invention, a plurality of alignment stops are positioned to contact selected peripheral edges of the sheet while the sheet is supported on support posts to position and orient the window at a predetermined position relative to the datum points.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: January 13, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Donald A. Mackey
  • Patent number: 6673730
    Abstract: The present invention provides a high redox, ultraviolet and/or infrared absorbing radiation absorbing, and colored glass using a standard soda-lime-silica glass base composition and additionally at least on essential solar absorbing and colorant set of components. The solar absorbing flat glass article has two opposing major surfaces with a thickness of 1.5 to 12 mm. and a redox value in the range of greater than 0.38 to about 0.6, a retained sulfate measured as (SO3) value in the range of greater than 0.005 to less than 0.18 weight percent, and is essentially free of coloration from inorganic polysulfides.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: January 6, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Larry J. Shelestak
  • Patent number: 6666983
    Abstract: The present invention is directed to an article with a patterned appearance provided by a visually observable contrast between one or more genereally transparent thin film coatings deposited over a substrate. At least one of the deposited coatings exhibits a reflected color and/or contrast and visible differing transmitted color and/or contrast or a plurality of coatings together exhibit different reflected colors and/or contrasts. The coatings are selected from the group of: metals depositable by magnetron sputtering vacuum deposition, chemical vapor deposition, pyrolytic coating, or sol-gel techniques, metal oxide coatings, metal nitride coatings, semi-conductor containing coatings, metal oxynitrides and mixtures thereof. The present invention is also directed to a method of making the articles having a visually observable patterned appearance involving masking and applying the coating or applying the coating and removing a portion of the coating to form the pattern.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: December 23, 2003
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Gary J. Marietti, Mehran Arbab, James J. Finley